Overview
- Münch Energie has commissioned the Leuna/Krumpa battery-park at 250 MW power and about 500 MWh storage, giving the system enough energy at full output for roughly two hours and the operator’s headline claim of serving about 250,000 households.
- The Leuna/Krumpa installation is planned to expand later in 2026 to roughly 800 MWh of stored energy without changing its 250 MW power rating, increasing its discharge duration but not its peak output.
- LEAG Clean Power is building the much larger GigaBattery Boxberg with a 400 MW grid connection and about 1,600 MWh of storage using lithium‑iron‑phosphate cells supplied by HyperStrong and a 380 kV gas‑insulated switchgear being produced by Siemens Energy for the high‑voltage link.
- Project speed and finance vary: Leuna/Krumpa was reportedly built quickly and without state subsidies, while Boxberg and other big projects depend on timely construction of transmission and substation equipment to avoid bottlenecks in bringing multi‑hour capacity online.
- Germany already shows multiple gigawatt‑hours of large batteries in 2026 (about 7.48 GWh reported), but these installations supply only short‑to‑multi‑hour backup and must be paired with grid upgrades and other storage types to cover multi‑day low‑renewable periods.